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;;; Guile VM profiler
;; Copyright (C) 2001 Free Software Foundation, Inc.
;; This program is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation; either version 2, or (at your option)
;; any later version.
;;
;; This program is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;;
;; You should have received a copy of the GNU General Public License
;; along with this program; see the file COPYING. If not, write to
;; the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
;; Boston, MA 02111-1307, USA.
;;; Code:
(define-module (system vm profile)
:use-module (system vm core)
:use-module (ice-9 format)
:export (vm-profile))
(define (vm-profile vm objcode . opts)
(let ((flag (vm-option vm 'debug)))
(dynamic-wind
(lambda ()
(set-vm-option! vm 'debug #t)
(set-vm-option! vm 'profile-data '())
(add-hook! (vm-next-hook vm) profile-next)
(add-hook! (vm-enter-hook vm) profile-enter)
(add-hook! (vm-exit-hook vm) profile-exit))
(lambda ()
(vm-load vm objcode)
(print-result vm))
(lambda ()
(set-vm-option! vm 'debug flag)
(remove-hook! (vm-next-hook vm) profile-next)
(remove-hook! (vm-enter-hook vm) profile-enter)
(remove-hook! (vm-exit-hook vm) profile-exit)))))
(define (profile-next vm)
(set-vm-option! vm 'profile-data
(cons (vm-fetch-code vm) (vm-option vm 'profile-data))))
(define (profile-enter vm)
#f)
(define (profile-exit vm)
#f)
(define (print-result vm . opts)
(do ((data (vm-option vm 'profile-data) (cdr data))
(summary '() (let ((inst (caar data)))
(assq-set! summary inst
(1+ (or (assq-ref summary inst) 0))))))
((null? data)
(display "Count Instruction\n")
(display "----- -----------\n")
(for-each (lambda (entry)
(format #t "~5@A ~A\n" (cdr entry) (car entry)))
(sort summary (lambda (e1 e2) (> (cdr e1) (cdr e2))))))))
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